Drilling-machine.



No. 660,968.l Patentedoct;30,1900;

o. E. 0AKEs.

DBILLING MACHINE.

(Application tiled Dec. 28, 1899-.) (No Model.)

3 Sheets-'Sheet l.

Nu. 660,968. Patented 0ct`. 30, |900.

' IJ. E. OAKES.

nnlLLms ulAcHlliE.A (Application med nec. as; 1899.) (No Model.)

3 Sheds-Sheet 2.

TME Nonms Pzrzns co.. PHoTaLnTNo.. wnmamn. nc.

Patented 0st. 30, |900. 0. E. OAKES.. *nmLLma'mAcHma (Application filedDec. 2B, 1899.)

3 Sheets-Sheet 3.

(No Mode'l.)

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PATENT OLIVER E. OAKES, OF WEBB CITY, MISSOURI.

DRILLING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 660,968, dated October30, 1900.

l Application filed December 28, 1899. Serial No. 741,828. No model.)

T0 @ZZ whom z'f may concern.'

Be it known that I, OLIVER E. OAKEs, of Webb City, in the county ofJasper and State of Missouri, have invented a new and useful pImprovement in Drilling-Machines, of which the following is aspecification.

My invention relates todrilling-machines, and has for its object certainimprovements in such machines whereby they will be rendered veryefficient in operation and not liable to get out of order.

The invention consists in certain details of construction andcombination' of the parts, which I shall hereinafter specificallydescribe and claim.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which like characters of reference indicatecorresponding parts in all the views.

Figure l is a side elevation of my improved drilling-machine. Fig. 2 isa horizontal section thereof on the line 2 2 of Fig. l. Fig. 3 isa sideelevation of the machine on the side opposite to that shown in Fig. l,the upper part of the der-rick being broken away. Fig. 4 is an end viewofI the complete machine. Fig. 5 is a detail side view illustrating thefriction-gear for operating the bull-wheel, and Fig. 6 is a detail endview of the friction devices.

The derrick A is mounted on suitable sills B and consists 0f posts O,braced by beams D and cross-bars E, through which latter the mast F isfitted to slide and is held adjusted to predetermined heights by a cableG, secured in one of the posts C and passing under a pulley G in thelower end of the mast, over a similar pulley G2 in the opposite post,and adapted to be wound upon a windlass G2, as best seen in Fig. 4..

A pulley (Sr4 is journaled in the upper end of the mast F, and over thispulley the drilling-cable I-I is designed to pass, said cable passingdownwardly underneath a pulley J', journaled on a transverse shaft J 5,secured in the free end of the walking-beam J, and thence rearwardlyaround a second pulley J2, journaled on the transverse shaft J3. Thewalking-beam J is pivoted on the said transverse shaft J 2, as shown,theshaft being mounted in uprights J4, supported by the sill B. Toreciprocate the walking-beam J, I provide a pitman K, attached at oneend to the shaft J5 and connected at its other end to a crank K on ashaft K2, on which is secured a bandwheel K2. The latter is connected bya band K4 with the main driving-wheel K5, and the said wheel is mountedloosely on one end of the driving-shaft K6. To throw the drivingshaftinto gear, I provide the clutch K7, which is operated by a crank-shaftK8 and handle-rod K9 on the other side of the mai chine.

One end of the drilling-cable H after being passed around the pulley J2is secured upon the bull-wheel L, which is normally kept from rotatingby a brake-band L', secured at one end in a sill, passed around one sideof the bull-wheel', and at its other end is secured in the arch of atransverse crank-shaft L2, operated by a handle-rod L5.

In the ordinary operation of spudding77 the proper movement is given thetools by the reciprocation of the walking-beam and movernent of pulley Jthereon. After the spudding process is finished the walking-beam J isagain reciprocated by the mechanism described and raises thedrilling-tool by means of the temper-screw H', attached to its free endand grappling'the drilling-cable. After the operation is flnished,or ifanything should happen to the tools which would require the raising ofthe same out of the well, the bullwheel is operated to wind up thedrillingca ble. For this purpose I provide the following mechanism:

Secured to one side of one sill B, between the periphery of one side ofthe bull-wheel L and the adjacent periphery of a wheel M on the maindriving-shaft, is an upright bearingpost N, having laterally-extendingspringarms N and N2 at its upper and lower ends, respectively, as shownin Figs. 5 and 6, and a jointedbracket O is hung by ears O' from theupper spring-arm N". Jointed brackets P, two in number, are secured atone end by ears P' to the lower spring-arms N2, and `all three of saidbrackets are pivotally connected by ears O2 and P2 on the crank-shaft Q,mounted on the sill B and operated by a handle-rod Q. Y

A friction roller R is journaled in the bracket O just out of contactwith the peripheries of the Wheel M and bull-wheel and on IOO one sideof the horizontal diameter thereof, and similar though smallerfriction-rollers R are mounted in the brackets P on the other side of.such diameter, as shown in Fig. 5, said latter rollers having theirperipheries normally in frictional contact. seen that when thehandle-rod Q is pushed the single friction-roller R will be brought intoplay and the bull-wheel will be rotated to wind up the drilling-cable IIand draw the tools out of the well, while a pull on the lever will causethe rollers R to come into play and effect an opposite movement of thebullwheel.

In order to operate the sand-pu m p or bailer S, (see Figs. l and 3,) Ipass the sand-pump line S' overa pulley S2 in the upper end of the mastF and attach it to the sand-pump reel T, which latter is mounted on ashaft T, journaled at one end in the diagonal brace T2 of thederrick-frame and at its other end journaled in a Vertically-swinginglever T3. By moving said lever downward a frictionwheelT1 on thesand-reel shaft comes in frictional engagement with fly-wheel M',whereby to draw up the bailer S, while an 'upward movement of the leverthrows the said wheel Tl in engagement with a wear-plate on the brakeU'and stops the rotation of the sandreel. The lever T3 is held indifferent positions by pins V, which are adapted to be inserted in ablock W, as shown in l and 4.

It will be seen that I use no toothed wheels in my drilling-machine, sothat the danger of grinding off teeth of operating-wheels by the suddenstopping of the inachineis avoided.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a machine of the character described, the combination with adriven shaft carrying a friction-wheel, and a bull-wheel, ofspringsupported friction-rollers interposed between the peripheries ofthe friction-wheel and bullwheel, and means for throwing said rollersinto engagement with said wheels, as set forth.

2. In a drilling-machine, a framework, a

Now it will be driven shaft in said framework and carrying afriction-wheel, a bull-wheel in said framework, a bearing-post securedon the framework between the bull-wheel and frictionwheel,spring-supported friction-rollers connected with said post, and meansfor actuating said rollers whereby to drive the bullwheel from thefriction-wheeh'as set forth.

3. In a drilling-machine, a framework, a bull-wheel in said framework, adriven shaft carrying a friction-wheel, a bearing-post on saidframework, laterally-extending springarms secured to said post, bracketsmounted on said arms, friction-rollers in said brackets, and means forthrowingl said rollers into frictional engagement with said bull-wheeland friction-wheel, as set forth.

4. In a drilling-machine, a framework, a driven shaft in said frameworkcarrying a friction-wheel, a bull-wheel in said framework, abearing-post secured on the framework between the bull-wheel andfrictionwheel, laterally-extending spring-arms secured to the upper andlower ends of said post, a jointed bracket formed with ears by which itis hung from the upper spring-arm, a pair of jointed brackets havingears secured to the lower spring-arm, afriction-roller in each of saidbrackets and a crank-shaft mounted on the framework and secured to allof said brackets, as and for the purpose set forth.

5. In a drilling-machine, a bull-wheel, a driven shaft carrying afriction wheel, a spring-held friction-roller between the peripheries ofthe bull-wheel and friction-wheel on one side of their horizontaldiameters, a pair of spring-held friction -rollers on the other side ofsaid diameters, and means for alternately throwing the single roller andthe pair of rollers into gear, as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

OLIVER E. OAKES.

Witnesses:

A. J. MoFALL, FRANK E. SMITH.

